1211232030 has 32 divisors (see below), whose sum is σ = 2950349184. Its totient is φ = 318173856.

The previous prime is 1211232017. The next prime is 1211232059. The reversal of 1211232030 is 302321121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299292 + ... + 303311.

It is an arithmetic number, because the mean of its divisors is an integer number (92198412).

Almost surely, 2^1211232030 is an apocalyptic number.

1211232030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211232030 is an abundant number, since it is smaller than the sum of its proper divisors (1739117154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211232030 is a wasteful number, since it uses less digits than its factorization.

1211232030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602680.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1211232030 is about 34802.7589423597. The cubic root of 1211232030 is about 1065.9637818328.

Adding to 1211232030 its reverse (302321121), we get a palindrome (1513553151).

The spelling of 1211232030 in words is "one billion, two hundred eleven million, two hundred thirty-two thousand, thirty".